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Reasonability vs Rational - What's the difference?

reasonability | rational |

As nouns the difference between reasonability and rational

is that reasonability is the state or quality of being reasonable; reasonableness while rational is (mathematics) a rational number: a number that can be expressed as the quotient of two integers.

As an adjective rational is

capable of reasoning.

reasonability

English

Noun

(en-noun)
  • The state or quality of being reasonable; reasonableness.
  • *1897 , Judson Harmon, "Brief for the United States in the Case of the United States of America v. The Trans-Missouri Freight Association," The Yale Law Journal'', vol. 6, no. 6, p. 323''n .,
  • *:The very difficult inquiry as to the reasonability of such agreements was an inadequate protection.
  • *1982 , , The Foundations of Knowing, Univ. of Minnesota Press, p. 7,
  • *:Epistemic reasonability could be understood in terms of the general requirement to try to have the largest possible set of logically independent beliefs that is such that the true beliefs outnumber the false beliefs.
  • *2003 , F. R. Anscombe, "Quiet Contributor: The Civic Career and Times of John W. Tukey," Statistical Science , vol. 18, no. 3, p. 302 (quoting National Academy of Sciences president Philip Handler),
  • *:"The nation and the Academy can count themselves fortunate that your integrated intelligence, insight, sound judgment, good taste, and unflappable reasonability were all available."

    • rational

    English

    Alternative forms

    * rationall (obsolete)

    Etymology 1

    From (etyl) rationel, rational, from (etyl)

    Adjective

    (en adjective)
  • Capable of reasoning.
  • *
  • Logically sound; not contradictory or otherwise absurd.
  • (label) Healthy or balanced intellectually; exhibiting reasonableness.
  • *{{quote-magazine, date=2014-06-21, volume=411, issue=8892, magazine=(The Economist)
    • , title= Magician’s brain , passage=The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason. The architect of modern science was himself not very modern. He was obsessed with alchemy.}}
  • Of a number, capable of being expressed as the ratio of two integers.
    • ¾ is a rational number, but ?2 is an irrational number.
  • Of an algebraic expression, capable of being expressed as the ratio of two polynomials.
  • (label) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
    • Antonyms
    * (reasonable) absurd, irrational, nonsensical * (capable of reasoning) arational, irrational, non-rational * (number theory) irrational
    Related terms
    * arational * irrational * non-rational * rationale * rationality * rationalness * subrational * suprarational

    Etymology 2

    From (etyl) rational, from , for which see the first etymology.

    Noun

    (en noun)
  • (mathematics) A rational number: a number that can be expressed as the quotient of two integers.
    • The quotient of two rationals''' is again a '''rational .
  • A rational being.
    • (Young)

    References

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    Anagrams

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